openstack/deb-sahara
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Add job-types endpoint

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This change adds basic support for a job-types endpoint.
The abstract methods in provisioning.py will be implemented
for each plugin in separate CRs.

See the spec (available from the blueprint) for details on
supported filtering.

Change-Id: Ia6b41b1bab0f78b0b8e35633d09de93cb67bda90
Partial-Implements: blueprint edp-job-types-endpoint
This commit is contained in:
Trevor McKay 2015-03-04 09:59:03 -05:00
parent b9cd04839f
commit 2cc9fed940
5 changed files with 518 additions and 16 deletions
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449
doc/source/restapi/rest_api_v1.1_EDP.rst
View File

@ -729,21 +729,21 @@ A Job may be run on an existing cluster or a new transient cluster may be create
**Job ops**
+-----------------+-------------------------------------------------------------------+-----------------------------------------------------+
| Verb | URI | Description |
+=================+===================================================================+=====================================================+
| GET | /v1.1/{tenant_id}/jobs | Lists all created Jobs |
+-----------------+-------------------------------------------------------------------+-----------------------------------------------------+
| GET | /v1.1/{tenant_id}/jobs/<job_id> | Shows info about specified Job by id |
+-----------------+-------------------------------------------------------------------+-----------------------------------------------------+
| POST | /v1.1/{tenant_id}/jobs | Create a new Job object |
+-----------------+-------------------------------------------------------------------+-----------------------------------------------------+
| DELETE | /v1.1/{tenant_id}/jobs/<job_id> | Removes specified Job |
+-----------------+-------------------------------------------------------------------+-----------------------------------------------------+
| GET | /v1.1/{tenant_id}/jobs/config-hints/<job_type> | Shows default configuration by specified Job type |
+-----------------+-------------------------------------------------------------------+-----------------------------------------------------+
| POST | /v1.1/{tenant_id}/jobs/<job_id>/execute | Starts Job executing |
+-----------------+-------------------------------------------------------------------+-----------------------------------------------------+
+-----------------+-------------------------------------------------------------------+--------------------------------------------------------+
| Verb | URI | Description |
+=================+===================================================================+========================================================+
| GET | /v1.1/{tenant_id}/jobs | Lists all created Jobs |
+-----------------+-------------------------------------------------------------------+--------------------------------------------------------+
| GET | /v1.1/{tenant_id}/jobs/<job_id> | Shows info about specified Job by id |
+-----------------+-------------------------------------------------------------------+--------------------------------------------------------+
| POST | /v1.1/{tenant_id}/jobs | Create a new Job object |
+-----------------+-------------------------------------------------------------------+--------------------------------------------------------+
| DELETE | /v1.1/{tenant_id}/jobs/<job_id> | Removes specified Job |
+-----------------+-------------------------------------------------------------------+--------------------------------------------------------+
| GET | /v1.1/{tenant_id}/jobs/config-hints/<job_type> | Shows default configuration for Job type (deprecated) |
+-----------------+-------------------------------------------------------------------+--------------------------------------------------------+
| POST | /v1.1/{tenant_id}/jobs/<job_id>/execute | Starts Job executing |
+-----------------+-------------------------------------------------------------------+--------------------------------------------------------+
**Examples**
@ -996,6 +996,8 @@ Errors: none
This operation returns hints for configuration parameters which can be applied during job execution.
(deprecated) For config-hints, the *job-types* endpoint should be used instead.
This operation does not require a request body.
**Note**
@ -1587,3 +1589,420 @@ The following json response represents a Job Execution object returned from Saha
"job_configs": {},
"created_at": "2013-10-17 13:51:11.671977"
}
7 Job Types
===========
**Description**
Each plugin that supports EDP will support specific job types.
Different versions of a plugin may actually support different job types.
Configuration options will vary by plugin, version, and job type.
This endpoint provides information on which job types are supported by
which plugins and optionally how they may be configured.
**Job Binary Internal ops**
+-----------------+------------------------------------------------------+----------------------------------------------------------+
| Verb | URI | Description |
+=================+======================================================+==========================================================+
| GET | /v1.1/{tenant_id}/job-types | Lists job types supported by all versions of all plugins |
+-----------------+------------------------------------------------------+----------------------------------------------------------+
| GET | /v1.1/{tenant_id}/job-types?plugin=<plugin_name> | Filter results by plugin name |
+-----------------+------------------------------------------------------+----------------------------------------------------------+
| GET | /v1.1/{tenant_id}/job-types?version=<plugin_version> | Filter results by plugin version |
+-----------------+------------------------------------------------------+----------------------------------------------------------+
| GET | /v1.1/{tenant_id}/job-types?type=<job_type> | Filter results by job type |
+-----------------+------------------------------------------------------+----------------------------------------------------------+
| GET | /v1.1/{tenant_id}/job-types?hints=true | Include configuration hints in results |
+-----------------+------------------------------------------------------+----------------------------------------------------------+
Note that multiple search filters may be combined in the query string with *&* (for example ?type=Java&type=Pig&plugin=vanilla).
**Examples**
7.1 List all Job Types
----------------------
.. http:get:: /v1.1/{tenant_id}/job-types
Normal Response Code: 200 (OK)
Errors: none
For all job types show which versions of which plugins support them
This operation does not require a request body.
**Example**:
**request**
.. sourcecode:: http
GET http://sahara:8386/v1.1/775181/job-types
**response**
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
.. sourcecode:: json
{
"job_types": [
{
"name": "Hive",
"plugins": [
{
"description": "The Apache Vanilla plugin.",
"name": "vanilla",
"title": "Vanilla Apache Hadoop",
"versions": {
"1.2.1": {}
}
},
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"1.3.2": {},
"2.0.6": {}
}
}
]
},
{
"name": "Java",
"plugins": [
{
"description": "The Apache Vanilla plugin.",
"name": "vanilla",
"title": "Vanilla Apache Hadoop",
"versions": {
"1.2.1": {}
}
},
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"1.3.2": {},
"2.0.6": {}
}
}
]
},
{
"name": "MapReduce",
"plugins": [
{
"description": "The Apache Vanilla plugin.",
"name": "vanilla",
"title": "Vanilla Apache Hadoop",
"versions": {
"1.2.1": {}
}
},
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"1.3.2": {},
"2.0.6": {}
}
}
]
},
{
"name": "MapReduce.Streaming",
"plugins": [
{
"description": "The Apache Vanilla plugin.",
"name": "vanilla",
"title": "Vanilla Apache Hadoop",
"versions": {
"1.2.1": {}
}
},
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"1.3.2": {},
"2.0.6": {}
}
}
]
},
{
"name": "Pig",
"plugins": [
{
"description": "The Apache Vanilla plugin.",
"name": "vanilla",
"title": "Vanilla Apache Hadoop",
"versions": {
"1.2.1": {}
}
},
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"1.3.2": {},
"2.0.6": {}
}
}
]
}
]
}
7.2 List a subset of Job Types
------------------------------
.. http:get:: /v1.1/{tenant_id}/job-types?type=<job_type>&type=<job_type>
Normal Response Code: 200 (OK)
Errors: none
For the specified job types show which versions of which plugins support them
This operation does not require a request body.
**Example**:
**request**
.. sourcecode:: http
GET http://sahara:8386/v1.1/775181/job-types?type=Hive&type=Java
**response**
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
.. sourcecode:: json
{
"job_types": [
{
"name": "Hive",
"plugins": [
{
"description": "The Apache Vanilla plugin.",
"name": "vanilla",
"title": "Vanilla Apache Hadoop",
"versions": {
"1.2.1": {}
}
},
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"1.3.2": {},
"2.0.6": {}
}
}
]
},
{
"name": "Java",
"plugins": [
{
"description": "The Apache Vanilla plugin.",
"name": "vanilla",
"title": "Vanilla Apache Hadoop",
"versions": {
"1.2.1": {}
}
},
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"1.3.2": {},
"2.0.6": {}
}
}
]
}
]
}
7.3 List all Job Types supported by a plugin version
----------------------------------------------------
.. http:get:: /v1.1/{tenant_id}/job-types?plugin=<plugin_name>&version=<plugin_version>
Normal Response Code: 200 (OK)
Errors: none
Show all of the job types that are supported by a specified version
of a specified plugin
This operation does not require a request body.
**Example**:
**request**
.. sourcecode:: http
GET http://sahara:8386/v1.1/775181/job-types?plugin=hdp&version=2.0.6
**response**
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
.. sourcecode:: json
{
"job_types": [
{
"name": "Hive",
"plugins": [
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"2.0.6": {}
}
}
]
},
{
"name": "Java",
"plugins": [
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"2.0.6": {}
}
}
]
},
{
"name": "MapReduce",
"plugins": [
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"2.0.6": {}
}
}
]
},
{
"name": "MapReduce.Streaming",
"plugins": [
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"2.0.6": {}
}
}
]
},
{
"name": "Pig",
"plugins": [
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"2.0.6": {}
}
}
]
}
]
}
7.4 Show configuration hints for a specific Job Type supported by a specific plugin version
-------------------------------------------------------------------------------------------
.. http:get:: /v1.1/{tenant_id}/job-types?hints=true&plugin=<plugin_name>&version=<plugin_version>&type=<job_type>
Normal Response Code: 200 (OK)
Errors: none
Show the configuration hints for a single job type supported by a particular plugin version
This operation does not require a request body.
**Example**
**request**
.. sourcecode:: http
GET http://sahara/v1.1/775181/job-types?hints=true&plugin=hdp&version=1.3.2&type=Hive
**response**
.. sourcecode:: http
HTTP/1.1 200 OK
Content-Type: application/json
.. sourcecode:: json
{
"job_types": [
{
"name": "Hive",
"plugins": [
{
"description": "The Hortonworks Sahara plugin.",
"name": "hdp",
"title": "Hortonworks Data Platform",
"versions": {
"1.3.2": {
"job_config": {
"args": {},
"configs": [
{
"description": "Reduce tasks.",
"name": "mapred.reduce.tasks",
"value": "-1"
}
],
"params": {}
}
}
}
}
]
}
]
}
This is an abbreviated example that shows imaginary config hints.

4
etc/sahara/policy.json
View File

@ -60,5 +60,7 @@
"job-binary-internals:create": "",
"job-binary-internals:get": "",
"job-binary-internals:delete": "",
"job-binary-internals:get_data": ""
"job-binary-internals:get_data": "",
"job-types:get_all": ""
}

10
sahara/api/v11.py
View File

@ -151,8 +151,18 @@ def job_config_hints_get(job_type):
return u.render(api.get_job_config_hints(job_type))
@rest.get('/job-types')
@acl.enforce("job-types:get_all")
def job_types_get():
# We want to use flat=False with to_dict() so that
# the value of each arg is given as a list. This supports
# filters of the form ?type=Pig&type=Java, etc.
return u.render(job_types=api.get_job_types(
**u.get_request_args().to_dict(flat=False)))
# Job binary ops
@rest.post('/job-binaries')
@acl.enforce("job-binaries:create")
@v.validate(v_j_b.JOB_BINARY_SCHEMA, v_j_b.check_job_binary)

8
sahara/plugins/provisioning.py
View File

@ -65,6 +65,14 @@ class ProvisioningPluginBase(plugins_base.PluginInterface):
def get_edp_engine(self, cluster, job_type):
pass
@plugins_base.optional
def get_edp_job_types(self, versions=[]):
return {}
@plugins_base.optional
def get_edp_config_hints(self, job_type, version):
return {}
@plugins_base.required_with_default
def get_open_ports(self, node_group):
return []

63
sahara/service/edp/api.py
View File

@ -15,11 +15,14 @@
from oslo_config import cfg
from oslo_log import log as logging
import six
from sahara import conductor as c
from sahara import context
from sahara import exceptions as ex
from sahara.i18n import _LE
from sahara.plugins import base as plugin_base
from sahara.plugins import provisioning
from sahara.service.edp.binary_retrievers import dispatch
from sahara.service.edp import job_manager as manager
from sahara.utils import edp
@ -40,6 +43,66 @@ def setup_edp_api(ops):
OPS = ops
def get_job_types(**kwargs):
# Return a dictionary of all the job types that can be run
# by this instance of Sahara. For each job type, the value
# will be a list of plugins that support the job type. For
# each plugin, include a dictionary of the versions that
# support the job type.
# All entries in kwargs are expected to have list values
hints = kwargs.get("hints", ["false"])[0].lower() == "true"
plugin_names = kwargs.get("plugin", [])
all_plugins = plugin_base.PLUGINS.get_plugins(
base=provisioning.ProvisioningPluginBase)
if plugin_names:
plugins = filter(lambda x: x.name in plugin_names, all_plugins)
else:
plugins = all_plugins
job_types = kwargs.get("type", edp.JOB_TYPES_ALL)
versions = kwargs.get("version", [])
res = []
for job_type in job_types:
# All job types supported by all versions of the plugin.
# This is a dictionary where keys are plugin version
# strings and values are lists of job types
job_entry = {"name": job_type,
"plugins": []}
for plugin in plugins:
types_for_plugin = plugin.get_edp_job_types(versions)
# dict returns a new object so we are not modifying the plugin
p = plugin.dict
# Find only the versions of this plugin that support the job.
# Additionally, instead of a list we want a dictionary of
# plugin versions with corresponding config hints
p["versions"] = {}
for version, supported_types in six.iteritems(types_for_plugin):
if job_type in supported_types:
if hints:
config_hints = plugin.get_edp_config_hints(job_type,
version)
else:
config_hints = {}
p["versions"][version] = config_hints
# If we found at least one version of the plugin that
# supports the job type, add the plugin to the result
if p["versions"]:
job_entry["plugins"].append(p)
if job_entry["plugins"]:
res.append(job_entry)
return res
def get_job_config_hints(job_type):
return manager.get_job_config_hints(job_type)